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Finding the Fourth Proportional to 17,148.80, 25,780.80 and 14,614.40

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Solution

The fourth proportional to 17,148.80, 25,780.80 and 14,614.40 is: 21,970.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,148.80 : 25,780.80 = 14,614.40 : x
  2. Step 2: Convert to fraction form
    17,148.80/25,780.80 = 14,614.40/x
  3. Step 3: Cross multiply
    17,148.80x = 25,780.80 × 14,614.40
  4. Step 4: Simplify right side
    17,148.80x = 376,770,923.52
  5. Step 5: Solve for x
    x = 376,770,923.52/17,148.80
  6. Step 6: Final answer
    x = 21,970.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.